Justin Bieber: Happy Canada Day!

Justin Bieber keeps a low profile under his Chicago Bulls cap as he stops into a local Subway restaurant on Sunday (July 1) in Calabasas, Calif.

The 18-year-old singing sensation sent out a holiday greeting to all of his Twitter followers, saying, “HAPPY CANADA DAY!”

PHOTOS: Check out the latest pics of Justin Bieber

Over the weekend, Justin and his girlfriend Selena Gomez stopped by an ice cream truck for some frozen treats!

It was also announced that Justin‘s new album Believe surpassed Madonna‘s record for the biggest album debut week of the year.